2 tips.
1 - use
http://www.imageshack.us/ and link to it. It supports bigger than 200 kb.
2 - your picture is still the same size, because the white parts around the picture are still part of it. To use Paint effectively; start with the background really really small.
14.34KB
Then paste the screenshot in (automatically setting the correct height and width - eliminating the white) and resize it using the method below. 80% is just an example...
82.35KB